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bsp/lm3s69xx: Use shared start.S

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This commit is contained in:
Sebastian Huber
2012-03-24 20:55:40 +01:00
parent 34c6151754
commit 1ed238ec43
3 changed files with 13 additions and 133 deletions
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10
c/src/lib/libbsp/arm/lm3s69xx/Makefile.am
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@@ -45,7 +45,7 @@ include_HEADERS += ../../shared/include/tm27.h
noinst_LIBRARIES = libbspstart.a
libbspstart_a_SOURCES = start/start.S
libbspstart_a_SOURCES = ../shared/start/start.S
project_lib_DATA = start.$(OBJEXT)
@@ -75,9 +75,11 @@ libbsp_a_SOURCES += ../../shared/bootcard.c \
../../shared/src/stackalloc.c
# Startup
libbsp_a_SOURCES += startup/bspstart.c \
startup/bspstarthook.c \
startup/bspreset.c
libbsp_a_SOURCES += ../shared/startup/bsp-start-copy-sections.c
libbsp_a_SOURCES += ../shared/startup/bsp-start-memcpy.S
libbsp_a_SOURCES += startup/bspstart.c
libbsp_a_SOURCES += startup/bspstarthook.c
libbsp_a_SOURCES += startup/bspreset.c
# IRQ
libbsp_a_SOURCES += ../../shared/src/irq-generic.c \

65
c/src/lib/libbsp/arm/lm3s69xx/start/start.S
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@@ -1,65 +0,0 @@
/*
* Copyright (c) 2011 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Obere Lagerstr. 30
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#include <rtems/asm.h>
#include <rtems/system.h>
#include <rtems/score/cpu.h>
#include <bspopts.h>
#include <bsp/irq.h>
#include <bsp/linker-symbols.h>
/* External symbols */
.extern bsp_start_hook
.extern boot_card
.extern bsp_reset
/* Global symbols */
.globl _start
.syntax unified
.section ".bsp_start_text", "ax"
.thumb
.word bsp_stack_main_end
.word _start /* Reset */
.word bsp_reset /* NMI */
.word bsp_reset /* Hard Fault */
.word bsp_reset /* MPU Fault */
.word bsp_reset /* Bus Fault */
.word bsp_reset /* Usage Fault */
.word 0 /* Reserved */
.word 0 /* Reserved */
.word 0 /* Reserved */
.word 0 /* Reserved */
.word bsp_reset /* SVC */
.word bsp_reset /* Debug Monitor */
.word 0 /* Reserved */
.word bsp_reset /* PendSV */
.word bsp_reset /* SysTick */
.rept BSP_INTERRUPT_VECTOR_MAX - 15
.word bsp_reset /* IRQ */
.endr
.thumb_func
_start:
bl bsp_start_hook_0
mov r0, #0
bl boot_card
twiddle:
bl bsp_reset
b twiddle

71
c/src/lib/libbsp/arm/lm3s69xx/startup/bspstarthook.c
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2011 Sebastian Huber. All rights reserved.
* Copyright (c) 2011-2012 Sebastian Huber. All rights reserved.
*
* embedded brains GmbH
* Obere Lagerstr. 30
@@ -12,74 +12,17 @@
* http://www.rtems.com/license/LICENSE.
*/
#include <bspopts.h>
#include <bsp.h>
#include <bsp/start.h>
#include <bsp/linker-symbols.h>
static void BSP_START_TEXT_SECTION copy(int *dst, const int *src, int n)
{
if (src != dst) {
const int *end = dst + (n + sizeof(int) - 1) / sizeof(int);
while (dst != end) {
*dst = *src;
++src;
++dst;
}
}
}
static void BSP_START_TEXT_SECTION clear_bss(void)
{
int *dst = (int *) bsp_section_bss_begin;
int n = (int) bsp_section_bss_size;
const int *end = dst + (n + sizeof(int) - 1) / sizeof(int);
while (dst != end) {
*dst = 0;
++dst;
}
}
void BSP_START_TEXT_SECTION bsp_start_hook_0(void)
{
/* Copy .text section */
copy(
(int *) bsp_section_text_begin,
(const int *) bsp_section_text_load_begin,
(size_t) bsp_section_text_size
);
/* Do nothing */
}
/* Copy .rodata section */
copy(
(int *) bsp_section_rodata_begin,
(const int *) bsp_section_rodata_load_begin,
(size_t) bsp_section_rodata_size
);
/* Copy .data section */
copy(
(int *) bsp_section_data_begin,
(const int *) bsp_section_data_load_begin,
(size_t) bsp_section_data_size
);
/* Copy .fast_text section */
copy(
(int *) bsp_section_fast_text_begin,
(const int *) bsp_section_fast_text_load_begin,
(size_t) bsp_section_fast_text_size
);
/* Copy .fast_data section */
copy(
(int *) bsp_section_fast_data_begin,
(const int *) bsp_section_fast_data_load_begin,
(size_t) bsp_section_fast_data_size
);
/* Clear .bss section */
clear_bss();
void BSP_START_TEXT_SECTION bsp_start_hook_1(void)
{
bsp_start_copy_sections();
/* At this point we can use objects outside the .start section */
}